Collaborative Research: Volatile Loss During Magma Ascent and Cooling

Lead PI: Terry Plank , Alexander Saylor Lloyd

Unit Affiliation: Geochemistry, Lamont-Doherty Earth Observatory (LDEO)

August 2010 - July 2014
Central America ; North America ; Lamont Doherty Earth Observatory (LDEO) ; Fuego Volcano, Guatelama ; Seguam Volcano, AK
Project Type: Research

DESCRIPTION: The project aims to assess directly the volatile loss from magmas over timescales of minutes to months, as measured in volcanic crystals and glass, and from this provide estimates of magma ascent rates critical to understanding eruptive processes. This will be accomplished using analytical techniques to measure volatile species.

OUTCOMES: Different chronometers are providing coherent, rapid timescale of water los during eruption and this test case is now ready to be applied to other volcanic systems.


National Science Foundation (NSF)




Carnegie Institution of Washington



Lloyd, A.S., Plank, T., Ruprecht, P., Hauri, E. and Rose, W. (2013) Volatile Loss from Melt Inclusions in Pyroclasts of Differing Sizes. Contributions to Mineralogy and Petrology, 165: 129-153. DOI 10.1007/s00410-012-0800-2;

Lloyd, A.S., Plank, T., Ruprecht, P., Hauri, E.H., Rose, W., and Gonnermann, H.M. (2014) NanoSIMS results from olivine-hosted melt embayments: Magma ascent rate during explosive basaltic eruptions. Journal of Volcanology and Geothermal Research, 283, 1-18,;

Lloyd, A.S., Terry Plank, Philipp Ruprecht, Elizabeth Ferris, Erik Hauri (2016) An assessment of clinopyroxene as a recorder of magmatic water and ascent. Journal of Petrology, Vol.57, No.10, 1865–1886.


glass volcanic crystals magma ascent rate volcanic eruption volatile loss magma geochemistry


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